pecl.php.net search:redis
wget http://...
tar zxf redis-xx.tgz
/usr/local/php56/bin/phpize //编译php56
./configure --with-php-config=usr/local/php56/bin/php-config
make && make install
vi php.ini 添加extension=redis.so
重启php
查看phpinfo()看看 是否安装成功
原文：http://www.cnblogs.com/walksnow/p/7144220.html